30mm Beam Aperture Comparison Chart

Specifications
6880
6650
Units & Tolerances
Optical Apertures Supported, two-axis
20, 30
20, 30
MM
Maximum Recommended Load
64
92
gm*cm2 , +/-10%
 
Mechanical
Rotor Inertia
6.4
9.2
gm*cm2, +/-10%
Torque Constant
2.54
6.5
x105 Dyne-cm/Amp, +/-10%
 
Electrical, Drive Armature
Coil Resistance
1
3.5
ohms, +/-10%
Current, RMS
7.5
2.8
A, Maximum
Small Angle Step Response
0.9
3.5
ms, with balanced inertia matched load
 
Electrical, Position Detector
Linearity
99.9
99.9
%, minimum, over 40 degrees
Repeatability
8
1.5
Microradians, Typical

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